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armature circuit     
相关语句
  电枢电流
     The computer simulation process is mainly determined by electrical time constant and electromechanical time constant. If frequency and pule width ratio of PWM are changed, the ripple of current, torque and so on are only influenced, when average value of armature circuit voltage is constant. This will causes vibration, noise and additional loss, but will not influence the basic characteristic of motor.
     论述了用PWM供电时的直流电动机暂态过程的特性,用计算机数值计算和实验证明:PWM供电的电机暂态过程的特性依然由电路时间常数和机电时间常数决定.若保持电枢电路电压平均值不变,改变PWM的频率和占空比,只影响电枢电流和转矩等的脉动.使电机产生振动、噪音和附加损耗,不影响电机的基本性能.
短句来源
     A nonlinear multi-input multi-output (MIMO)excitation and speed controller for separately excited DCmotors with field weakening is presented, which plays the role of the general excitation circuit regulator, the speed regulator and the current regulator in armature circuit. This controller takes field current, speed and armature current of the motor as state variables.
     针对具有弱磁调速的他励直流电动机模型,该文将常规励磁电流调节器、电枢回路速度调节器、电流调节器合而为一,将励磁电流同电机的速度、电枢电流一样取为状态变量,按照多输入多输出(MIMO)非线性系统,尝试性地设计了一种MIMO励磁及速度控制器。
短句来源
  电枢电路
     The computer simulation process is mainly determined by electrical time constant and electromechanical time constant. If frequency and pule width ratio of PWM are changed, the ripple of current, torque and so on are only influenced, when average value of armature circuit voltage is constant. This will causes vibration, noise and additional loss, but will not influence the basic characteristic of motor.
     论述了用PWM供电时的直流电动机暂态过程的特性,用计算机数值计算和实验证明:PWM供电的电机暂态过程的特性依然由电路时间常数和机电时间常数决定.若保持电枢电路电压平均值不变,改变PWM的频率和占空比,只影响电枢电流和转矩等的脉动.使电机产生振动、噪音和附加损耗,不影响电机的基本性能.
短句来源
     If the frequency and pulse width ratio of PWM are changed,the ripple of current,torque and so on are only influenced,when the average value of the armature circuit voltage is constant. This will cause vibration,noise and additional loss,but will not influence the basic characteristic of motor.
     若保持电枢电路电压平均值不变,改变PWM的调制频率和占空比,只影响电机电流和转矩的脉动,使电机产生振动、噪音和附加损耗,不影响电机的基本性能.
短句来源
  电枢回路
     The monitor and control system makes use of PLC and the proved locomotive microcomputer control devices to perform respectively the switch logical control of system and the current closed loop control of the armature circuit, and it employs an industrial control microcomputer to carry out speed or characteristics control. DOS operating system is used in the control system in order to obtain fast control refresh rate A microcomputer with windows operating system provides a friendly interface to people.
     监控系统综合利用了PLC和机车微机箱成熟控制装置,分别完成系统开关逻辑控制和电枢回路的电流闭环控制,利用一台工控微机进行速度或特性控制,采用DOS操作系统,以获得较快的控制刷新速度,用一台微机作人机界面,采用WINDOWS操作系统,使人机界面很友好。
短句来源
     A nonlinear multi-input multi-output (MIMO)excitation and speed controller for separately excited DCmotors with field weakening is presented, which plays the role of the general excitation circuit regulator, the speed regulator and the current regulator in armature circuit. This controller takes field current, speed and armature current of the motor as state variables.
     针对具有弱磁调速的他励直流电动机模型,该文将常规励磁电流调节器、电枢回路速度调节器、电流调节器合而为一,将励磁电流同电机的速度、电枢电流一样取为状态变量,按照多输入多输出(MIMO)非线性系统,尝试性地设计了一种MIMO励磁及速度控制器。
短句来源
     Under the prerequisite of remaining motor and thyristor,Siemens 6RA70 system was used to carry out the reconstruction. The functions with the reversible magnetic field and the irreversible armature were remained,and the communication functions of the magnetic field circuit and the armature circuit were realized.
     在保留电机和可控硅主件的前提下,使用西门子的6RA70系统进行改造,保留了其磁场可逆电枢不可逆的功能,实现了磁场回路和电枢回路的通讯功能。
短句来源
     Then the model is applied to simulate the direct start-up process,the reduced voltage starting process and the starting process with series resistance in the armature circuit.
     据此仿真模型进行了并励直流电动机的直接起动、降压起动、电枢回路串电阻起动的实例仿真实验,给出了有关仿真结果。
短句来源
     Then the model is applied to simulate the direct start-up process, the reduced voltage starting process and the starting process with series resistance in the armature circuit.
     据此仿真模型,进行了并励直流电动机的直接起动、降压起动、电枢回路串电阻起动的实例仿真实验,给出了有关仿真结果。
  电枢
     If the frequency and pulse width ratio of PWM are changed,the ripple of current,torque and so on are only influenced,when the average value of the armature circuit voltage is constant. This will cause vibration,noise and additional loss,but will not influence the basic characteristic of motor.
     若保持电枢电路电压平均值不变,改变PWM的调制频率和占空比,只影响电机电流和转矩的脉动,使电机产生振动、噪音和附加损耗,不影响电机的基本性能.
短句来源
     Under the prerequisite of remaining motor and thyristor,Siemens 6RA70 system was used to carry out the reconstruction. The functions with the reversible magnetic field and the irreversible armature were remained,and the communication functions of the magnetic field circuit and the armature circuit were realized.
     在保留电机和可控硅主件的前提下,使用西门子的6RA70系统进行改造,保留了其磁场可逆电枢不可逆的功能,实现了磁场回路和电枢回路的通讯功能。
短句来源
     Third, the acceleration feedback is added to suppress the vi bration of robotic manipulator caused by inductance of armature circuit. Finally, the computer simulation and ex periment results for PUMA562 are given to demonstrate the effectiveness of proposed control method.
     三是加入了加速度反馈,抑制了由电枢电感所引起的机械手的振动.最后,给出了PUMA562机器人的计算机仿真和实验结果验证了此控制法的有效性.
短句来源
     Then the model is applied to simulate the direct start-up process,the reduced voltage starting process and the starting process with series resistance in the armature circuit.
     据此仿真模型进行了并励直流电动机的直接起动、降压起动、电枢回路串电阻起动的实例仿真实验,给出了有关仿真结果。
短句来源
     Then the model is applied to simulate the direct start-up process, the reduced voltage starting process and the starting process with series resistance in the armature circuit.
     据此仿真模型,进行了并励直流电动机的直接起动、降压起动、电枢回路串电阻起动的实例仿真实验,给出了有关仿真结果。
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    In this article a synchrnous generator with three phase half-wave rectification output is simplified step by step, then the simpliest model is obtained. Using the model we can inde pendently solve the excitation circuit, armature circuit and load circuit.Under the treatment the conception of instantaneous state is introduced, and the every physical nature of the original system is retained. From the calculation the difference between the simple solution and the accurate one is within 8%. Therefore...

    In this article a synchrnous generator with three phase half-wave rectification output is simplified step by step, then the simpliest model is obtained. Using the model we can inde pendently solve the excitation circuit, armature circuit and load circuit.Under the treatment the conception of instantaneous state is introduced, and the every physical nature of the original system is retained. From the calculation the difference between the simple solution and the accurate one is within 8%. Therefore this method can be used in engineering.In the digital simulation, we adopt the switch simulation technology. The offered program has better flexibility. It Can be convenientlv used in the analysis of the complete power system and the research of other rectification circuit, moreover it is applicable to dynamic state calculation of many situation.

    文章对三相半波整流输出同步发电机逐步进行了简化,求得了激磁、电枢和负载回路都独立求解的最简模型。 在处理过程中,完全引入了瞬态的概念,同时保留了原系统的各项物理本质。由计算结果可知简化解和准确解相差之在8%内,可见该方法可以在工程实际中应用。 在进行数字仿真时,采用了开关仿真技术,提供的程序具有较大的灵活性,可方便地进行整个电源系统的分析和其他整流电路的研究,并能适用于任何情况的动态计算。

    This paper proposes the transient performances of synchronus generators and their control systems. The state equations of synchronus generators and their control systems under various transient conditons with consideraton of the resistances of all windings, the effect of damping windings, the transients in armature circuits as well as the unequal mutual inductances between different windings on the same rotor axis are developed. The computing methods and the flow charts are presented. The parameters of...

    This paper proposes the transient performances of synchronus generators and their control systems. The state equations of synchronus generators and their control systems under various transient conditons with consideraton of the resistances of all windings, the effect of damping windings, the transients in armature circuits as well as the unequal mutual inductances between different windings on the same rotor axis are developed. The computing methods and the flow charts are presented. The parameters of a 300 MW turbo-generator set are used as an example to illustrate the use of this mthod. The results obtained show that the state space method is a very powerful method for the analyses of transient performances of synchronous generator set with its outstanding advantages of simplicity, accuracy, convenience and flexibility. It is also useful for the design and operation of electric machines and power systems.

    本文用状态空间法分析研究了同步发电机组及其控制系统的暂态过程。综合考虑了发电机各绕组的电阻及阻尼绕组的作用、定子回路的电磁暂态过程和同一轴向各绕组互感的不相等等因素,建立了发电机组及其控制系统的状态方程;提出了算法和计算流程框图;并以300兆瓦汽轮发电机组为实例进行了计算。计算结果表明,状态空间法作为研究同步发电机组暂态过程的一种新方法,具有列式简洁、计算准确、使用方便和适应性强等优点,对电机和电力系统的设计和运行具有一定的实用价值。

    This paper describes a new method of static demagnetization of synchronous machines, its scheme, principle, numerical and experim-ental results. In case of an accidental fault in the interior of a synchronous machine, it is not necessary to disconnect the rotor winding with the exciter circuit, we may insert an oscillation resist-ance in the armature circuit of the exciter, as shown in Fig, 1, After insertion, all field currents and voltages of the system will start oscil-lating and will vanish after a...

    This paper describes a new method of static demagnetization of synchronous machines, its scheme, principle, numerical and experim-ental results. In case of an accidental fault in the interior of a synchronous machine, it is not necessary to disconnect the rotor winding with the exciter circuit, we may insert an oscillation resist-ance in the armature circuit of the exciter, as shown in Fig, 1, After insertion, all field currents and voltages of the system will start oscil-lating and will vanish after a short time.

    本文介绍一种新型快速灭磁方法,即利用静止开关来改变直流励磁机的极性,形成振荡,故称静止振荡灭磁。本文列出了振荡灭磁的原理、接线图、灭磁计算和实验结果。计算和实验表明:在相同转子过电压情况下,振荡灭磁速度都较电阻灭磁的速度快一倍左右,同时还可削弱阻尼绕组和发电机剩磁的不利影响。本文还设计了一个自动充磁回路,并利用二极管成功地解决灭磁电阻与励磁回路电阻的配合问题。

     
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